Typical compression

I have a Yamaha Champ with an ebay 60cc. top end kit. I have been riding it around the last 2 weeks and trying to get it all broken in. It did overheat after my first ride, but seemed to run okay after. I ran a compression test which showed 120 PSI cold, 100 PSI warm. The compression has since improved after getting the motor more broken in. 130 PSI warm/cold.

Is 130 PSI okay or is that low?

Re: Typical compression

Sounds good to me.

Re: Typical compression

I'd be happy with 130# compression .

Re: Typical compression

They brought out brand new mopeds with 7 to 1 compression. YOURS is good compression.

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